Sister Bay, Wisconsin Demographics & Population 2026
During the 2020–2024 ACS period, Sister Bay, Wisconsin had a total population of 1,044, the 391st largest village in Wisconsin, with a median household income of $71,169, which is 8% lower than the state average. The poverty rate is 24.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- 51.3% of adults hold a bachelor's degree or higher — top 10% in Wisconsin.
- Near full employment with an unemployment rate of just 0.7%.
Sister Bay Quick Facts
How Sister Bay Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 1,016 | 1,044 | +2.8% |
| Median household income | $57,679 | $71,169 | +23.4% |
| Median home value | $328,700 | $392,200 | +19.3% |
How Sister Bay Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 37 | National average: 61
Education
Educational Attainment (Adults 25+)
Sister Bay Rankings in Wisconsin
Explore Wisconsin Rankings
Other Cities in Door County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Sturgeon Bay | 9,806 | $59,926 | 9.2% | $236,300 |
| Forestville | 558 | $83,804 | 3.8% | $163,800 |
| Ephraim | 412 | $100,313 | 8.0% | $505,100 |
| Baileys Harbor | 386 | $80,556 | 12.7% | $385,900 |
| Egg Harbor | 343 | $89,375 | 11.1% | $441,700 |
| Ellison Bay | 186 | $66,000 | 21.0% | $292,900 |
| Little Sturgeon | 111 | $70,625 | 5.4% | $483,300 |
Cities Similar to Sister Bay
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Albany | 1,063 | $72,649 | $173,200 | 16.0% | 11.8% |
| Strum | 1,064 | $68,958 | $200,000 | 19.1% | 17.4% |
| Hustisford | 1,008 | $72,083 | $217,500 | 13.5% | 5.5% |
| Reedsville | 1,099 | $72,917 | $167,200 | 15.8% | 9.1% |
| Benton | 1,054 | $80,938 | $157,400 | 21.2% | 8.1% |
Population Overview
Sister Bay is a small community located in Wisconsin, within Door County. The total population is 1,044. It ranks as the 391st most populous out of 808 Census-designated places in Wisconsin.
Age Demographics
The median age in Sister Bay is 61.0 years. This is 52% higher than the state median of 40.2 years. 23.8% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The median household income in Sister Bay is $71,169. This is 8% lower than the state median of $77,485. It is also 12% lower than the national median of $80,734. The poverty rate stands at 24.7%. This is 134% higher than the state poverty rate of 10.5%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 0.7%. This is 78% lower than the state rate of 3.3%. The median home value is $392,200. Housing costs are 47% higher than the state median of $266,500. The home-value-to-income ratio is 5.5x. 50.3% of occupied housing units are owner-occupied. This homeownership rate is 26% lower than the state average of 67.8%.
Race & Ethnicity
Sister Bay has a predominantly White (non-Hispanic) population, comprising 96.3% of all residents. Hispanic or Latino residents account for 1.6%. The Hispanic or Latino population (1.6%) is well below the state average of 8.0%. The Asian population (1.0%) is well below the state average of 2.9%.
Education
51.3% of residents aged 25 and older hold a bachelor's degree or higher. This places Sister Bay in the top 10% of all cities in the state for educational attainment. This is 54% higher than the state rate of 33.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 99.0%. Notably, 21.2% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Sister Bay, Wisconsin is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Wisconsin state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 808 Census-designated places in Wisconsin. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
Free data download: Get all Wisconsin city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Sister Bay, Wisconsin?
Sister Bay, Wisconsin has a population of 1,044 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Sister Bay, WI?
The median household income in Sister Bay is $71,169, which is 12% lower than the national median of $80,734.
What is the poverty rate in Sister Bay, WI?
The poverty rate in Sister Bay is 24.7%. This means approximately 243 residents live below the federal poverty line.
What is the racial makeup of Sister Bay, Wisconsin?
Sister Bay's population is 96.3% White, 0.0% Black, 1.6% Hispanic/Latino, and 1.0% Asian.
What is the median home value in Sister Bay, WI?
The median home value in Sister Bay is $392,200. The home-value-to-income ratio is 5.5x.
How educated is Sister Bay, Wisconsin?
51.3% of adults (25+) in Sister Bay hold a bachelor's degree or higher, and 21.2% hold a graduate or professional degree.